1&2 October: Guardianship before, during and after a criminal event

Tuesday 1 October, 14.30 – 17.00, Colloquium Guardianship before, during and after a criminal event at the NSCR.

Every criminologist knows the famous maxim of routine activity theory: crime is occurring where a motivated offender meets a suitable target in the absence of a suitable guardian. Many researchers have addressed the role of offenders and of targets, while research into the role of guardians has, comparatively, got less attention. It has been suggested recently that the role of guardians is rather different before, during or after a criminal event.

The NVC, the VU Department of Criminology and the NSCR are jointly organising this colloquium, meant to investigate that claim. There will be ample room for discussion. Admittance is free, but the number of places is limited. Please announce your attendance at


14:15 Coffea & tea
14:30 Henk Elffers (VU, NSCR) A short refresher on guardianship before, during and after an event
14:45 Iris van Sintemaartensdijk (VU) Experimental research into how guardianship influences burglars before a criminal event
15:10 Peter Ejbye-Ernst (NSCR) Observing guardianship during public violence events
15:35 Break
15:50 Clarissa Meerts (VU) After-the-fact guardianship in an organisational context: internal investigations into employee misbehaviour
16:15 Danielle Reynald (Griffith) Guardianship looks very different for different type of offences
16:40 General discussion Chaired by Henk Elffers
17:00 Drinks

Wednesday 2 October, 11.45 at the VU Aula, Maud van Bavel will defend her PhD thesis Active guardianship, its agents and the effects to offender behaviour.

prof. dr. Henk Elffers

About prof. dr. Henk Elffers

Henk Elffers graduated in mathematical statistics at the University of Amsterdam; he fulfilled appointments as statistics consultant at Mathematisch Centrum Amsterdam (CWI), assistant-professor at the Faculty of Geography Utrecht, associate professor methodology of social science at the Law Faculty Erasmus University Rotterdam and professor of psychology of law at the Law Faculty of Antwerp University.

He published on reliability and validity of social science measurement, with an emphasis on self-report methods; multivariate methods; social-psychological models for rule compliance; tax evasion; simulation methods; rational choice; offenders’ location choice; guardianship; the relation judge – general public; displacement of crime.

His research interests focus on quality of criminological data, better conceptualisation of rational choice models for offender decision making in a spatial context, guardianship. Next to his NSCR appointment he is emeritus professor of empirical research into criminal law enforcement at VU University Amsterdam and adjoint-lecturer at the School of Criminology and Criminal Justice of Griffith University, QLD.

Henk is a member of the Empirical Legal Studies Cluster, the Criminal Events Cluster, the Spatial-temporal Cluster, the Computational Criminology Cluster and the Technological innovations (CRIME Lab) Cluster.

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Braga, A A; Welsh, B C; Papachristos, A V; Schnell, C; Grossman, L

The growth of randomized experiments in policing. The vital few and the salience of mentoring Journal Article

Journal of Experimental Criminology, 10 (1), pp. jan-28, 2013.